Wilhki-m jebzskrg



llld'lil -wiftil l lt t fi itilt.

Zttelttrewtrrrg. mastication tilled August tit}. mrr' .i. err/l t wiiom it may concern;

d d-ssrrssc Itlorrs, citiseris oi the German epsblic residing st lirinsregenteristr. i0. .t r" "l i 'ilmersdorfi Germeiiy, sled liteldeiuias-"l reptow. "merry, lisve certeiri new end oseuil improvellyes. which We here filed sit at It is. bl'overriber d5, 19%) 9 Ur Wll'iflrl 'tbejtollowiiig ist cilicrttion.

B ur 1 l. seiitioveritiorirel es to new dyes;

'i ll.

e oplicrtble es end tor dyeing di l. .2v

veriel in the vet.

f dy-s torrii yellow to emerge erystels soluble in ctrgmilc solvents but solucolor. Reduced by sodiumliyo drcsultlte in. the presence o' sodium bydrozo ide tlrey yield at vet from 'iicb vegeteble erid eriirsel fibrous meter. dyed yellow to oreiig'e tirrts test to the action ol" chlorine erid seep. 'reenew dyes ere derivetives of ethics end contain ll't their molecule the res-- idue iieplitlisul'tern. v

These new dyes may be menuilectured by corrderisiris; riepbthstdtem ifil-plienezi'o tlllirielre, .drinsleri der Clierrlic 4:153, 106) e. emons derivative substituted by leslogeri llltl such tetreeliloroberlzoqtlirlorie fitcbloro-l.v

iteeplitlioquirione. "r13 dichlero-l.d--rreplrpliriorce, chloroneplitbsulternquirior e tlrlmclre, .Ptiirreieri der Cliemic 4:12., 95)- 23-daciiloro-loiepbtlisultemquinone (Ziriclre, Art melee. der Cliemic 412, 9?}.

t The reeriul ectorc of the dyes rosy be illustreted by the following examples WltllOul? limiting invention, the parts being by Weight l. 3 per-ts of risphtlisuitsordid-pliersezme, parts of cl'ilorsrlii, it oli sodium sceerrd 8i) oi nitrobenserie are best se tor en beer at 100 C. termed from which. the condensation prod- .e't settles es yellow being filtered when cool. 'l.be co.v .densetiorr product by e sodium bydrosullite in the presence cams-- tic sods. lye is converted into an olive brows rstt itrem Wlricli cotton is dyed yellowish.

.ieil, perts oli eodi'omeeetete s of mtrobemerie Whilst stirriri After cooling the crystels the dye ere filtered oil. The orerige c'ryetsls ere dissolved e it imovvri il'ltt't Wi l. Wrtrrsrr/r lire/terse J i'l'l' coricerztreted sulfuric with en,

It red solution is liceted 5 3 hours st 1520 to M40 (1.-

23 parts of 5t.3-dicl1loro-4t-iieplltlisulta-mquisome. 2 of sodium acetate and parts if nitrobenserie are heated for s11 hour at 100 C. soluble in concentrated sulfuric acid with an orerige red color and dyeing from its olive vet yellow tints.

Having now described our invention and manner in which it may be performed whet We clsirn is,-

l. The herein described new dyes being condensation products of neplithsultem-ddplieiiztzine with a (princes-der vative substititted by halogens. being yellow to orange c'ystels or powders scarcely soluble in orgenie solvents, but soluble in concentrated sulfuric acid With on orange-red color and. beingreduced by sodium hydrosul'l'ite in the presence of sodiumv hydroxide yielding e vet from which iibrous material is dyed yellow to orsnge tints, East to the action of. chlorine end seep.

2. The herein described new dyes being condensation products of nephthsultem-dtpbenezine with s Lt-nephtboquinone derivative substituted by halogens in the quinone nucles, being yellow to orange crystals, or powders scarcely soluble ill organic solvents but soluble in concentrated sulfuric acid With en orange-red color end beingreduced by sodium liydrosullite in the presence of sodium hydroxide yielding a "vet from which fibrous meteriel is dyed yellow tints, fast to the action of chlorine and soap.

3. llhe liereirrdescribed new dyes being condensation products of rutphthsultam-Zi/iplierms'iise with e lxt-espbtlroquinone derivetive substituted by lielogene in the dd position, being yellow to orange crystsls or powders, scarcely soluble in organic The dye settles in orange crystals.

lllll solvents. but soluble in coneenfimtecl sulfuric acid with an orange-red color and being reduced by sodium hydrosulfite in the presence of sodium hydroxide yielding a vat from wlich fibrous material is dyed yellow tints, fast to the action of chlorine and soap.

4. The herein described new dye being the condensation produce of naphthsultam-Slrl- 'phenazine with 2.3-diohloro-1.4-naphthoquinone, being a yellow powder; or yellow crystals, scarcely soluble in organic solvents, but soluble in concentrated sulfuric acid with an ,4331 ,ese

orange red color and being; min zeal by so- 

